Floating wing-dam



2 Sheets8heet 1.

(No Model.)

H. P. MARVIN 8a A. ARNOLD.

FLOATING WING DAM.

No. 313,747. Patented Mar. 10, 1885.

'JWZ'ORS Attorney WITNESSES (No Model.) 2 Sheets-Sheet 2. H. P. MARVIN &A. ARNOLD.

FLOATING WING DAM No. 313,747. Patented Mar. 10, 1885.

Tivrrr: YATES ATENT tries.

HENRY P. MARVIN AND ALLEN ARNOLD, OF GHIPPEVVA FALLS, WVISGONSIN.

FLOATING WiNG-DAM.

SPECIFICATION forming part of Letters Patent No. 313,747, dated March10, 1885.

No model.)

provements in Floating Wing-Dams; and we do hereby declare the followingto be a full, clear, and exact description of the invent-ion,

such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings, and tolettersor figures of reference marked thereon, which formapart of this specification.

This invention relates to wing-dams, its object being to provide a meansfor deepening the channels of rivers and protecting the banks of thesame; and to this end our invention consists in a portable structurewhich is provided with movable gates and means for adjusting the same toand from the structure, as will be hereinafter set forth and pointed outin the claims.

In the accompanying drawings, Figure 1 is a perspective view. Fig. 2 isa front view. Fig. 3 is a horizontal section, and Fig. 4 is aperspective view of a modification of our in vention.

A represents a suitable structure, which is adaptedand provided withmeans for secur ing the same to a pier, wharf, or other permanentstructure in a river or stream, or the aforesaid structure may be afloat or a scow which is adapted to be sunk and secured in such portionsof a river or stream at or near such points as it is desired to deepenthe same.

The structure A is provided with a projecting portion, A, which isbraced by suitable supports, and serves directly as a supporting meansfor the wings. I

In Figs. 1, 2, and 3 of the accompanying drawings, a c represent beamswhich project at angles from the portion A of the structure and serve asbraces and supports for the vertical beams B, which are braced to eachother by the beams b. The vertical beams B are provided withlongitudinalrecesses 0, within rear portion of the recess 0, is also provided withrollers c. The rollers hereinbefore described allow the gate to beraised and lowered.

To each of the standards B B are secured bearings f, within which isjournaled a transverse rod, F, which carries at one end a gearwheel, E,with which meshes a pinion secured to the end of a crankshaft, as shown.Aflexible connection, 9, is secured to the shaft F and to the lowerportion of the sliding gate D, and upon turning the crank-shaft the gatewill be raised or lowered. This structure is intended to be employed indeep water where it is desired to direct the current toward a centralpoint for the purpose of deepening the channel.

In Fig. 4 of the accompanying drawings we have shown a modification ofour invention which is essentially adapted to be employed in shallowplaces, and, instead of providing a vertically-sliding gate, horizontalfolding gates are substituted therefor. In this figure, H H representthe folding wings, which are pivoted to the portion A of the structure,and are arranged so that they may be folded to lie against the sides ofthe same. These wings H H are flexibly connected to each other, and areadapted to be operated by a Windlass attached to the structure.

The hereinbefore-described device is particularly adapted to be used toprevent the banks of streams or rivers from washing in such localitieswhere brush and rock cannot be made to stay, and where there isquicksand,which makes it impossible to construct a permanent bank orfixture. The direction of the current can be controlled and regulated byraising and lowering or extending the gates or wings to cause thecurrent to flow farther from the banks, or cause streams havingquicksands as a bottom to fill up back of the wings, and thus confinethe current to the channel when the current is injuring the bank of thestream or approaches to bridges, due.

The device hereinbefore described can be readily moved from one point ofa stream or river to another.

WVe claim- 1. In a wing-dam, a portable and buoyant structure providedwith laterally-horizontal projecting supports, to which is attached amovable section or wing, flexible connections secured near the end ofthe wing and to the connection to a Windlass, the partsbeing comdrum ofa Windlass located near or upon the bined and organized substantially asset forth.

structure for adjusting the wing, the parts be- In testimony whereof weaffix my signatures ing constructed and combined substantially as i inpresence of two witnesses. 5 shown, and-for the purpose set forth. 7HENRY P MARVIN 2. In a wing-dam, the buoyant and portable structure A A,provided with brace-beams a a a, and verticallyrecessed beams B B, aver- Witnesses:

tical adjustable gate, D, the gate and beam W. H. STAFFORD, rc havingrollers e e and connected by a flexible W. H. BOWE.

ALLEN ARNOLD.

